/*
    This file is part of MOOPerformanceAssessment.

    MOOPerformanceAssessment is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    MOOPerformanceAssessment is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with MOOPerformanceAssessment; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    Authors: Thomas Voß, 2007
    Contact: thomas.voss.bochum@googlemail.com
*/

#include <CSVDataSetReader.h>

#include <QIODevice>
#include <QRegExp>
#include <QStringList>
#include <QTextStream>

std::vector<PointSet> CSVDataSetReader::operator()( QIODevice * device, 
						 int trials,
						 int noObjectives ) 
{
    std::vector<PointSet> result;

    QTextStream stream( device );

    QRegExp regExp( "\\s+" );

    PointSet trial;

    while( !stream.atEnd() )
	{
	    QString line = stream.readLine().trimmed();

	    if( line.isEmpty() )
		{
		    result.push_back( trial );
		    trial.clear();
		    continue;
		}

	    QStringList sa = line.split( regExp );
	    
	    if( sa.size() != noObjectives )
		continue;

	    Point point( noObjectives );

	    for( int i = 0; i < sa.size(); i++ )
		point[i] = sa.at( i ).toDouble();

	    trial.push_back( point );
	}

    return( result );
}

extern "C" IDataSetReader * factory()
{
    return(new CSVDataSetReader());
}
